Results 171 to 180 of about 52,830 (299)

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Augustus' solar meridian functioning and the birth of the western leap year. [PDF]

Sci Rep
Baiocchi V, Baumgartner M, Barbarella M, D'Alessio MT, Del Pizzo S, Giannone F, Radicioni F, Stoppini A, Tosi G, Troisi S, Alessandri L.   +10 more
europepmc   +1 more source

Bret/BRAT

Critical Quarterly, EarlyView.
Nicholas Smart
wiley   +1 more source

Microspherules Formed by Lightning Strikes

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

Laboratory Investigation of Simultaneous Ultraviolet Photoprocessing and Temperature-Programmed Desorption of Interstellar Ice Analogs. [PDF]

ACS Earth Space Chem
Sarver CC, Walker CE, Widicus Weaver SL.
europepmc   +1 more source

‘reportless places’: Janet Malcolm and Collage

Critical Quarterly, EarlyView.
Natalie Ferris
wiley   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Open-source models for development of data and metadata standards. [PDF]

Patterns (N Y)
Rokem A, Mandava V, Cristea N, Tambay A, Bouchard K, Berys-Gonzalez C, Connolly A.   +6 more
europepmc   +1 more source

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 more
wiley   +1 more source

Computational modeling for enhanced reliability in space missions: An integrated FAHP-COPRAS approach to supplier selection. [PDF]

PLoS One
Lin BY, Yeh H.
europepmc   +1 more source